Bash Exit Codes

Bash 5.x36 codes

Exit codes, signals, set -e, pipefail and shell errors

Showing 36 of 36 errors

Code	Message	Severity	Tier
0	Success	INFO		→
1	General error	ERROR	Notable	→
2	Misuse of shell builtins	ERROR	Notable	→
126	Command not executable	ERROR	Critical	→
127	Command not found	ERROR	Notable	→
128	Invalid argument to exit	ERROR	Common	→
130	Script terminated by Control-C (SIGINT)	WARNING	Common	→
137	Process killed (SIGKILL)	CRITICAL		→
139	Segmentation fault (SIGSEGV)	CRITICAL		→
141	Broken pipe (SIGPIPE)	INFO	Common	→
143	Terminated (SIGTERM)	WARNING	Notable	→
1	Permission denied	ERROR	Critical	→
1	No such file or directory	ERROR	Notable	→
1	Unbound variable	ERROR	Critical	→
2	Syntax error	ERROR	Notable	→
124	Command timed out	ERROR	Notable	→
125	Command cannot be run by timeout	ERROR	Notable	→
129	Hangup (SIGHUP)	WARNING	Notable	→
131	Quit and core dump (SIGQUIT)	CRITICAL	Critical	→
132	Illegal instruction (SIGILL)	CRITICAL		→
134	Abort (SIGABRT)	CRITICAL		→
135	Bus error (SIGBUS)	CRITICAL		→
136	Floating-point exception (SIGFPE)	CRITICAL	Critical	→
138	User-defined signal 1 (SIGUSR1)	INFO	Common	→
140	User-defined signal 2 (SIGUSR2)	INFO	Common	→
142	Alarm clock (SIGALRM)	WARNING	Notable	→
148	Stopped by Ctrl+Z (SIGTSTP)	INFO	Common	→
152	CPU time limit exceeded (SIGXCPU)	ERROR	Critical	→
153	File size limit exceeded (SIGXFSZ)	ERROR	Critical	→
255	Exit status out of range / fatal error	ERROR	Notable	→
set -e	Unexpected exit from set -e (errexit)	ERROR	Notable	→
pipefail	Pipeline failed (set -o pipefail)	ERROR	Notable	→
trap ERR	ERR trap — command failed	ERROR	Notable	→
trap EXIT	EXIT trap — cleanup on script exit	INFO	Common	→
ulimit	Resource limit exceeded	ERROR	Critical	→
subshell	Subshell or command substitution exit code	INFO	Common	→